TY  - BOOK
AU  - Sharma, K.K.
TI  - Voice and data communication
SN  - 9789350143339
AV  - TK 5101.5.A1 .S53/ 
CY  - New Delhi
KW  -     Telecommunication.     Internetworking (Telecommunication).     Digital communications--Periodicals.     Broadband communication systems
ER  -